FindChildren not finding nested children

[hawkerm]

Godot version

4.0.1-stable_mono_win64

System information

Windows 10 19044

Issue description

I'm writing a C# script and trying to use FindChildren in my _Ready method.

My scene is like this with a root node with the script attached:

Calling FindChildren("face_*") is returning an empty array where I instead expect it to return a collection of the 6 nodes under cube_rounded.

If I call FindChild("face_*") instead it properly returns the face_front first node at the top of the tree, so the singular child function is working, but not the collection one.

FindChildren("Pivot") does find its immediate child, so it looks like maybe the recursive property is being ignored? Explicitly setting it to true changes nothing.

Steps to reproduce

1. Install C# version of Godot
2. Setup a 3D scene of nodes (any type) with hierarchy:

• RigidBody3D (names not important here)
  • Pivot
    • cube_rounded
      • face_front
      • face_left
      • face_right
      • face_back
      • face_top
      • face_bottom

3. Create a new C# script on the root node inheriting from Node3D
4. Add var test = FindChildren("face_*"); in the _Ready() method
5. set a breakpoint in Visual Studio and debug the project

See after executing the line that test is an empty array instead of the 6 expected nodes.

Repros in 4.0.0-stable as well (checked for new version and tried on 4.0.1 when I saw it had released, same issue).

Minimal reproduction project

Minimal project with same structure above of just Node3D objects:

FindChildrenRepro.zip

Setup to output in Console:

--- Debugging process started ---
Godot Engine v4.0.1.stable.mono.official.cacf49999 - https://godotengine.org
Vulkan API 1.3.205 - Forward Mobile - Using Vulkan Device #0: NVIDIA - NVIDIA GeForce GTX 1080
 
Children Count: 0 expect 6
Can find child instead: True

Should see Children Count: 6 expect 6 instead.

Included the call to FindChild which shows the exact same pattern working to find a child there, but the aggregate call with FindChildren fails.